Overview
- Researchers published the study in Science on July 23, 2026, reporting models that reconstruct language numbers across the last 12,000 years and identify a clear rise followed by a sharp fall.
- The team combined ethnographic data from 171 hunter‑gatherer and fisher groups with Holocene population estimates and thousands of simulated demographic trajectories to link population change with language counts.
- Their simulations place the early‑Holocene baseline at about 4,500 to 6,200 languages and commonly produce a peak of tens of thousands of languages between 1,000 and 3,000 years ago before a rapid decline to roughly 7,500 today.
- The decline is tied first to the spread of large ancient states and empires that consolidated languages through sustained contact and later to European colonial expansion, so language loss began well before modern colonialism.
- Authors say the result reframes today’s languages as survivors of a historical bottleneck with implications for language documentation and for how scholars interpret common linguistic features, though some linguists caution the estimates depend on contested assumptions about group sizes and language splitting.